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BACKGROUND: Bone morphogenetic protein-2 is a high-efficient bone inducing factor, which can induce the inside and outside periosteum and marrow-derived stromal cells differentiate into osteoblast, strengthen the re generation of bone mattress, activate or lead MSCs around blood vessel to differentiate into chondroblast and osteoblast. OBJECTIVE: To observe the effects of yigu capsule to be used for pre vention and treatment on the expression of bone morphogenetic protein-2 in bone tissue of the ovariectomized rats with osteoporosis. DESIGN: A completely randomized grouping design and randomized con trol trial. SETTING: Department of Traditional Chinese Medicine, First Affiliated Hospital, Jinan University.MATERIALS: The experiment was carried out in the laboratory of Traditional Chinese Medicine of Jinan University form March to October 2003. Animals: 72 normal grand female SD rats, with 10-month-old ages, weighted (380±20) g, provided by the center of laboratory animal science of Guang dong (the quality exequatur number of No. 2002A024), were adopted. Totally 24 rats were randomly chosen from them anddivided into preventive group (12 rats) and therapeutic group (12 rats) of sham operation (only opened the rats' abdomen but not removed their ovary), and the left 48 rats were randomly divided into 4 groups after replicating OP model by ovariectomy (which opened the rats' abdomen and removed their ovary): OP model control group of prevention, OP model control group of treatment, OP model group of prevention with yigu capsule and OP model group of treatment with yigu capsule, with 12 rats in each group. Medicine: Yigu capsule was made up by epimedium, fruit of lycium barbaruml, radix angelica sinensis, root of achyranthes bidentata blume etc., the decoct-free granule of the drugs were provided by Shenzhen Sanjiu Medical & Pharmaceutical Co., Ltd, the aqueous solution was made to include crude drug 1.0 g/Ml. INTERVENTIONS: The prevented groups of yigu capsule were administered by gastric infusion 3 days after ovariectomy, 3 Ml NS was given to preventive group of sham operation and OP model control group and 3 Ml aqueous solution of yigu capsule was given to preventive group with yigu capsule,1 time a day for 24 weeks; the therapeutic groups of yigu capsule were administered by gastric infusion in the 13th week after ovariectomy, 3 Ml NS was given to therapeutic group of sham operation and OP model control group and 3 Ml aqueous solution of yigu capsule was given to therapeutic group with yigu capsule, 1 time a day for 12 weeks. Immunohistochemistry was used to detect the expression of BMP-2 on protein level in bone tissue. MAIN OUTCOME MEASURES: The mean gray (MG) of the BMP-2 positive reaction cells in bone tissue.RESLUTS: In the 24th week after ovariectomy, the MG of BMP-2 positive reaction cells in bone tissue of preventive OP model control group, preventive group with yigu capsule and preventive group of sham operation were 81.84±10.01, 124.46±6.55, 130.15±10.09, that of preventive OP model control group was obviously lower than that of preventive group of sham operation (P < 0.01), and that of preventive group with yigu capsule was obviously higher than that of preventive OP model control group (P < 0.01) and closed to that of preventive group of sham operation (P > 0.05). The MG of BMP-2 positive reaction cells in bone tissue of therapeutic OP model control group, therapeutic group with yigu capsule and therapeutic group of sham operation were 77.97±10.35, 110.32±8.69, 131.79±12.10, that of therapeutic OP model control group was obviously lower than that of therapeutic group of sham operation (P < 0.01), and that of therapeutic group with yigu capsule was obviously higher than that of therapeutic OP model control group (P < 0.01) and closed to that of therapeutic group of sham operation (P > 0.05). CONCLUSION: Thepreventive and therapeutic treatment of yigu capsule could both improve the expression of BMP-2 in bone tissue on albumen level.
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Objective To evaluate the curative effect of comprehensive rehabilitative treatment for lumbar intervertebral disc protrusion by using the MRI tests before and after the treatment. Methods Forty patients with lumbar intervertebral disc protrusion were treated by a comprehensive rehabilitative treatment program composed of physical modalities, medications, traction, massage and medical gymnastics, for 30 days. MRI test were performed with all the patients, and comparison of the MRI manifestations before and after the treatment was conducted to evaluate the therapeutic efficacy. Results The clinical effective rate was 82.5%. There was no significant difference between the MRI manifestations, including MRI signal intensity, thickness and degree of the protrusion, anteroposterior and transverse diameter, width of lateral recess, before and after the treatment. Conclusion The comprehensive rehabilitative treatment program used in this study did not significantly decrease the size of lumbar intervertebral disc protrusion, but did relieve or cure the clinical symptoms of the patients.